Nosy Be in September
In September, Nosy Be averages 27°C (80°F) during the day and 22°C (71°F) at night, with frequent rain — about 14 days of the month see precipitation (48 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
September offers comfortable temperatures in Nosy Be, with some rain to plan around.
How September compares to the rest of the year in Nosy Be
September is in the middle of the year for warmth in Nosy Be (9th of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 1°C below the annual average (27°C). September runs roughly the same as August (27°C) and warms a further 1°C into October (28°C).
September sunrise & sunset in Nosy Be
Times shown for Nosy Be local time (Indian/Antananarivo), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Nosy Be — September
Golden-hour and blue-hour windows for the 15th of September, in Nosy Be's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Nosy Be in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Nosy Be's popularity.
Crowds & pricing — September in Nosy Be
Nosy Be is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — September in Nosy Be
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Nosy Be in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 27°C / 81°F | 24°C / 75°F | 502 mm | 29 | — |
| February | 28°C / 82°F | 24°C / 75°F | 340 mm | 26 | — |
| March | 28°C / 82°F | 24°C / 76°F | 260 mm | 28 | — |
| April | 28°C / 83°F | 24°C / 76°F | 103 mm | 20 | — |
| May | 28°C / 82°F | 23°C / 74°F | 49 mm | 14 | — |
| June | 27°C / 80°F | 22°C / 72°F | 35 mm | 11 | — |
| July | 26°C / 79°F | 21°C / 70°F | 31 mm | 9 | — |
| August | 27°C / 80°F | 21°C / 70°F | 36 mm | 12 | — |
| September | 27°C / 80°F | 22°C / 71°F | 48 mm | 14 | — |
| October | 28°C / 82°F | 23°C / 73°F | 93 mm | 18 | — |
| November | 28°C / 83°F | 24°C / 74°F | 158 mm | 24 | — |
| December | 28°C / 83°F | 24°C / 75°F | 210 mm | 28 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Nosy Be in September →
Frequently asked questions
How hot is Nosy Be in September?
In September, Nosy Be averages a high of 27°C (80°F) and a low of 22°C (71°F) — generally warm.
Does it rain a lot in Nosy Be in September?
September can be fairly wet in Nosy Be, with about 14 rainy days on average.
Is September a good time to visit Nosy Be?
September is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Nosy Be in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Nosy Be for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.